@font-face{font-family:Barlow;src:url('assets/fonts/BarlowCondensed-Bold.ttf') format('truetype');font-style:normal;font-weight:700;font-display:swap}
@font-face{font-family:Source;src:url('assets/fonts/SourceSans3.ttf') format('truetype');font-style:normal;font-weight:200 900;font-display:swap}
:root{--paper:#f5f1e7;--white:#fffdf7;--ink:#20221f;--muted:#64645b;--line:#cbc7ba;--yellow:#efd34f;--red:#b93727;--ease:cubic-bezier(.22,1,.36,1);--body:Source,'Helvetica Neue',Arial,sans-serif;--display:Barlow,Impact,'Arial Narrow',sans-serif}
/* Phone notice uses the same editorial type and paper palette as the site. */
.mobile-notice-open{overflow:hidden}
.mobile-notice{width:min(430px,calc(100% - 40px));max-height:calc(100dvh - 40px);margin:auto;padding:28px;background:var(--paper);color:var(--ink);border:1px solid var(--ink);border-top:8px solid var(--yellow);box-shadow:7px 7px 0 var(--ink)}
.mobile-notice::backdrop{background:rgba(245,241,231,.42);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
.mobile-notice-brand{font:700 28px/1 var(--display);letter-spacing:-.03em;margin-bottom:28px}
.mobile-notice h2{font:700 44px/1.02 var(--display);text-transform:uppercase}
.mobile-notice-intro{display:block;margin-bottom:16px;font:400 20px/1.35 var(--body);text-transform:none}
.mobile-notice-highlight{background:linear-gradient(transparent 58%,var(--yellow) 58%);box-decoration-break:clone;-webkit-box-decoration-break:clone}
.mobile-notice form{margin-top:30px}
.mobile-notice button{display:flex;justify-content:space-between;align-items:center;gap:16px;width:100%;min-height:50px;padding:12px 16px;border:1px solid var(--ink);border-radius:0;background:var(--ink);color:var(--white);font:600 18px/1.3 var(--body)}
.mobile-notice button:hover{background:var(--yellow);color:var(--ink)}
.mobile-notice button span{font-size:24px;line-height:1}
@media(max-height:450px){.mobile-notice{padding:18px 24px}.mobile-notice-brand{margin-bottom:12px}.mobile-notice h2{font-size:36px}.mobile-notice-intro{margin-bottom:10px}.mobile-notice form{margin-top:18px}}
*{box-sizing:border-box}
html{font-size:clamp(12px,calc(100vw / 97),16px);scroll-behavior:smooth;scroll-padding-top:6.875rem}
html,body,*{scrollbar-width:none;-ms-overflow-style:none}
html::-webkit-scrollbar,body::-webkit-scrollbar,*::-webkit-scrollbar{display:none;width:0;height:0}
body{margin:0;background:var(--paper);color:var(--ink);font:1.375rem/1.5 var(--body);-webkit-font-smoothing:antialiased}
a{color:inherit}button{font:inherit;color:inherit;cursor:pointer}
img,svg,video{max-width:100%;display:block}img{height:auto}
h1,h2,h3,p,figure{margin:0}h1,h2,h3{font-weight:700}p+p{margin-top:1em}
button,a{-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible{outline:3px solid var(--red);outline-offset:5px}
[tabindex="-1"]:focus{outline:none}::selection{background:var(--yellow);color:var(--ink)}
[hidden]{display:none!important}
.wrap{width:min(90rem,calc(100% - 7rem));margin-inline:auto}
.red{color:var(--red)}.muted{color:var(--muted)}
.display,.panel-title{font:700 clamp(3.75rem,7vw,7rem)/.95 var(--display);text-transform:uppercase;letter-spacing:-.012em}
.mark{position:relative;display:inline-block;isolation:isolate}
.mark::before{content:'';position:absolute;z-index:-1;left:-.02em;right:-.02em;top:60%;bottom:-.015em;background:var(--yellow);transform:rotate(-1deg);transform-origin:left;animation:marker 600ms 250ms var(--ease) both}
.skip-link{position:fixed;left:1.25rem;top:0.75rem;z-index:1000;background:var(--ink);color:white;padding:0.75rem 1.25rem;transform:translateY(-200%)}
.skip-link:focus{transform:none}
.site-header{position:sticky;top:0;z-index:30;background:var(--paper);flex-shrink:0}
.site-header .header-inner{width:calc(100% - 3rem)}
.header-inner{min-height:5.375rem;display:flex;align-items:center;gap:2rem}
.brand,.footer-brand{text-decoration:none;flex-shrink:0;font:700 3rem/.9 var(--display);letter-spacing:-.03em}
.site-nav{display:flex;gap:2rem;align-items:center;margin-left:auto}
.site-nav a,.site-nav summary{font-size:1.25rem;font-weight:600;text-decoration:none;position:relative;padding-block:0.75rem;white-space:nowrap;transition:color 180ms var(--ease)}
.site-nav a::after,.site-nav summary::after{content:'';position:absolute;left:-1.125rem;top:50%;width:0.625rem;height:0.625rem;border-radius:50%;background:var(--red);transform:translateY(-50%) scale(0);transition:transform 200ms var(--ease)}
.site-nav a:hover,.site-nav a[aria-current="location"],.site-nav summary:hover,.site-nav summary[aria-current="location"],.nav-dropdown[open]>summary{color:var(--red)}
.site-nav a:hover::after,.site-nav a[aria-current="location"]::after,.site-nav summary:hover::after,.site-nav summary[aria-current="location"]::after,.nav-dropdown[open]>summary::after{transform:translateY(-50%) scale(1)}
.nav-dropdown{position:relative}
.site-nav summary{list-style:none;cursor:pointer}
.site-nav summary::-webkit-details-marker{display:none}
.site-nav summary:focus-visible{outline:3px solid var(--red);outline-offset:5px}
.nav-menu{position:absolute;left:50%;top:100%;transform:translateX(-50%);width:max-content;max-width:calc(100vw - 2.25rem);background:transparent;border:0;box-shadow:none;padding:0.875rem 0 0;display:grid;gap:2px}
.site-nav .nav-menu a{display:block;font-size:1.25rem;line-height:1.3;padding:0.5rem 0;white-space:normal;width:fit-content;max-width:100%;margin-inline:auto;text-align:center}
body::after{content:'';opacity:0;transition:opacity 240ms cubic-bezier(.22,.61,.36,1);position:fixed;inset:0 0 auto;height:clamp(18.75rem,32vh,24.375rem);z-index:25;pointer-events:none;background:rgba(245,241,231,.35);-webkit-backdrop-filter:blur(0.625rem);backdrop-filter:blur(0.625rem);-webkit-mask-image:linear-gradient(to bottom,#000 0%,#000 55%,rgba(0,0,0,.85) 65%,rgba(0,0,0,.45) 80%,transparent 100%);mask-image:linear-gradient(to bottom,#000 0%,#000 55%,rgba(0,0,0,.85) 65%,rgba(0,0,0,.45) 80%,transparent 100%)}
body:has(.nav-dropdown[open])::after{opacity:1}
.site-header .brand,.site-header .site-nav>a,.site-header .site-nav>.nav-dropdown,.site-header .reading-progress{transition:filter 240ms cubic-bezier(.22,.61,.36,1),color 180ms var(--ease)}
.site-header:has(.nav-dropdown[open]) .brand,.site-header:has(.nav-dropdown[open]) .site-nav>a,.site-header:has(.nav-dropdown[open]) .site-nav>.nav-dropdown:not([open]),.site-header:has(.nav-dropdown[open]) .reading-progress{filter:blur(0.375rem)}



.text-link{font-size:1.375rem;font-weight:650;text-underline-offset:0.375rem;text-decoration-thickness:1px}
.text-link:hover{color:var(--red)}
/* A single visible section occupies the space between the header and navigation.
   Long sections scroll inside that space, so another section never peeks through. */
.home-page.paged{height:100vh;height:100dvh;display:flex;flex-direction:column;overflow:hidden}
.paged main{flex:1;min-height:0;position:relative;overflow:hidden}
.page-pane{min-height:calc(100svh - 10rem);scroll-margin-top:6.25rem}
.paged .page-pane{height:100%;min-height:0;overflow-y:auto;overflow-x:hidden;overscroll-behavior-y:contain;scrollbar-gutter:stable}
.pane-inner{padding-block:clamp(1.125rem,2.5vh,1.75rem)}
#behaviours .pane-inner,#learn .pane-inner{padding-top:clamp(1.125rem,2.5vh,1.75rem)}
#foundations-title{position:relative}
#behaviours-title,#behaviours .teaching-note{position:relative}
.panel-title{margin-bottom:2rem;max-width:68.75rem}
.page-pane:not(.opening){animation:panel-enter 420ms var(--ease) both}




.paged .opening{scrollbar-gutter:auto;overflow:clip}
.opening{display:flex;flex-direction:column;position:relative;isolation:isolate}
.opening-copy{top:0}
.opening-copy{text-align:center;padding-top:clamp(1.5rem,4vh,3.5rem);position:relative;z-index:2;flex-shrink:0}
.opening h1{font-size:clamp(4.125rem,min(9vw,13vh),9.875rem);line-height:.94}
.opening h1>span{display:table;margin-inline:auto;animation:title-enter 800ms var(--ease) both}
.opening h1>span+span{animation-delay:90ms}
.opening-copy p{animation:title-enter 650ms 180ms var(--ease) both;font-size:clamp(1.375rem,2.1vw,1.875rem);margin:1.375rem auto 0;max-width:56.25rem}
.opening-art{flex:1;min-height:15.625rem;width:100%;position:relative;isolation:isolate;overflow:hidden;margin-top:4.25rem}
.opening-art img{position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:102%;max-width:none;height:100%;object-fit:cover;object-position:center top;z-index:1;animation:portrait-enter 900ms 950ms var(--ease) both}
.opening-disc{position:absolute;left:50%;top:4%;width:min(64vw,62.5rem);aspect-ratio:1;border-radius:50%;transform:translateX(-50%);background:var(--yellow);background-image:radial-gradient(#75611840 .8px,transparent 1px);background-size:5px 5px}
.theory-feature{display:grid;grid-template-columns:1.15fr 1fr;border-top:1px solid var(--line);padding-top:1.875rem;gap:clamp(1.75rem,5vw,5rem);align-items:center}
#learn .theory-feature{position:relative}
#learn>.pane-inner>.theory-heading,#learn>.pane-inner>.theory-feature{position:relative;top:-1cm}
.theory-visual{padding:2.25rem 1.5rem;background:#e9e1cf url('assets/images/paper.webp');min-height:17.5rem;display:grid;align-items:center}
.theory-image{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:contain}
.theory-diagram{display:flex;gap:1.125rem;align-items:center;justify-content:center}
.concept{padding:1.5rem;background:var(--white);font:700 clamp(1.875rem,3.2vw,3.25rem)/1.02 var(--display);text-transform:uppercase;box-shadow:5px 0.4375rem #20221f1c;transition:transform 350ms var(--ease)}
.concept-a{transform:rotate(-5deg)}.concept-b{transform:rotate(4deg);background:var(--yellow)}
.concept-plus{font:700 2.75rem/1 var(--display);color:var(--red)}
.theory-copy{font-size:clamp(1.375rem,2vw,1.75rem)}.theory-copy .text-link{display:inline-block;margin-top:1.75rem}
.theory-copy h3{font:700 clamp(2.125rem,3vw,2.875rem)/1.08 var(--display);margin:0 0 1.875rem}
.theory-copy h4{font-size:1.08em;font-weight:700;line-height:1.25;margin:0 0 0.5rem}
.theory-copy section+section{margin-top:1.625rem}
.teaching-note{font-size:1.5rem;max-width:59.375rem;margin-bottom:2.25rem;color:var(--muted)}
.behaviour{display:grid;grid-template-columns:3.75rem minmax(0,27.5rem) 1fr 3rem;gap:1.875rem;align-items:center;border-top:1px solid var(--line);padding:2.25rem 0}
.behaviour-number{font:700 3rem/1 var(--display);color:var(--red);align-self:start;margin-top:0.5rem}
.poster-link{display:block;overflow:hidden;background:#e8e0cf}
.poster-link img{width:100%;aspect-ratio:16/9;object-fit:contain;transition:transform 500ms var(--ease)}
.behaviour-copy h3{font:700 clamp(2rem,3vw,2.875rem)/1.06 var(--display);text-transform:uppercase;margin-bottom:1.125rem}
.behaviour-copy h3 a{text-decoration:none}.behaviour-copy h3 a:hover{color:var(--red)}
.behaviour-copy p{font-size:1.375rem;line-height:1.45;color:var(--muted)}
.round-link{height:3rem;width:3rem;border:1px solid var(--ink);border-radius:50%;display:grid;place-items:center;text-decoration:none;font-size:1.75rem;transition:background 200ms}
.round-link:hover{background:var(--yellow)}
.research{background:var(--paper)}
.future .pane-inner{min-height:100%;display:flex;flex-direction:column;justify-content:center}
.research-intro{font-size:1.625rem;max-width:65.625rem;line-height:1.4;color:var(--muted);margin-bottom:3rem}
.research-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2.5rem;margin-top:calc(3rem + clamp(2rem,5vh,3.75rem));border-top:1px solid var(--ink)}
.research-item{padding-top:1.75rem;text-align:center}
.research-item h3{display:flex;align-items:center;justify-content:center;min-height:2.2em;margin-bottom:1.5rem;font:700 clamp(1.875rem,3vw,2.75rem)/1.1 var(--display);text-transform:uppercase}
.research-item h3 a{display:inline-block;text-decoration:none;transition:color 180ms var(--ease),transform 200ms var(--ease)}
.research-item h3 a:hover{color:var(--red);transform:translateY(-3px)}
.research-image-link{display:block;width:100%;max-width:25rem;margin-inline:auto;overflow:hidden;transition:transform 200ms var(--ease)}
.research-item img{width:100%;aspect-ratio:1;object-fit:contain;transition:transform 350ms var(--ease)}
.research-image-link:hover{transform:translateY(-3px)}
.research-image-link:hover img{transform:scale(1.035)}
.research-page main{padding-top:clamp(1.125rem,2.5vh,1.75rem)}
.research-page .lesson-heading{display:block;padding-top:0}
.future .panel-title{font-size:clamp(5.625rem,13vw,13.125rem)}
.future-description{font-size:clamp(1.625rem,3vw,2.5rem);margin-top:0.9375rem}
/* Learning pages retain their source-grounded text, with readable navigation. */
.breadcrumb{display:flex;gap:0.875rem;flex-wrap:wrap;padding:1.75rem 0;font-size:1.25rem;color:var(--muted)}
.breadcrumb a{text-underline-offset:5px}
.lesson-heading{display:grid;grid-template-columns:1fr auto;gap:1.875rem;align-items:end;padding:0.375rem 0 2.25rem}
.lesson-heading h1{font:700 clamp(3.25rem,6vw,5.625rem)/.98 var(--display);text-transform:uppercase;max-width:62.5rem;margin:0 0 1.5rem}
.lesson-heading p{max-width:53.125rem;font-size:1.625rem;line-height:1.4;color:var(--muted)}
.lesson-index{font:700 6.25rem/1 var(--display);color:#d6d0c1;padding-bottom:0.5rem}
.video-block{position:relative;background:#e9e1cf;border:1px solid var(--line);overflow:hidden;max-width:100%}
.lesson-poster{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;animation:poster-enter 650ms var(--ease) both}
.video-block video{width:100%;aspect-ratio:16/9;object-fit:contain;background:var(--ink)}
.video-label{margin-top:0.75rem;text-align:center;color:var(--ink);font:700 1rem/1.2 var(--display);letter-spacing:.06em}
.lesson-layout{display:grid;grid-template-columns:15rem minmax(0,49.375rem);gap:4.0625rem;justify-content:space-between;padding:3.75rem 0 4.6875rem}
.lesson-aside{align-self:start;position:sticky;top:7.1875rem}
.lesson-aside nav{display:flex;flex-direction:column;border-left:1px solid var(--line)}
.lesson-aside nav a{font-size:1.25rem;text-decoration:none;padding:0.625rem 1.125rem;border-left:2px solid transparent;margin-left:-1px;color:var(--muted)}
.lesson-aside nav a:hover{border-color:var(--red);color:var(--ink)}
.lesson-aside nav a[aria-current="location"]{border-left-color:var(--red);color:var(--ink)}
.lesson-body{font-size:1.375rem;line-height:1.65}
.lesson-body>section{scroll-margin-top:6.875rem}.lesson-body>section+section{margin-top:2.625rem}
.lesson-body h2{font:700 2.5rem/1.1 var(--display);text-transform:uppercase;margin-bottom:1.25rem}
.lesson-body h3{font-size:1.625rem;margin:1.5625rem 0 0.5625rem}
.lesson-body p{margin-bottom:1.125rem}.lesson-body p:last-child{margin-bottom:0}
.lesson-body ol{list-style:none;counter-reset:steps;padding:0;margin:0}
.lesson-body li{counter-increment:steps;position:relative;padding-left:2.75rem;margin:1.5rem 0}
.lesson-body li::before{content:counter(steps,decimal-leading-zero);position:absolute;left:0;top:4px;color:var(--red);font:700 1.75rem/1 var(--display)}
.dialogue{background:#ebe5d8;border-left:3px solid var(--yellow);padding:1.75rem;margin-top:1.5rem}
.dialogue strong{font-size:1.25rem;display:block;color:var(--red);margin-bottom:5px}
.boundary{border-top:1px solid var(--line);padding-top:1.75rem}
.lesson-source{font-size:1.25rem;line-height:1.55;color:var(--muted);border-top:1px solid var(--line);padding-top:1.625rem;margin-top:2.5rem}
.references{font-size:1.25rem;line-height:1.55;list-style:none;padding:0}.references li{margin-bottom:1.25rem}
.references a{overflow-wrap:anywhere;text-underline-offset:4px}






.reading-progress{position:absolute;bottom:-1px;height:3px;width:100%;background:var(--red);transform:scaleX(0);transform-origin:left;pointer-events:none}
.framework-note{background:var(--yellow);padding:1.375rem 1.625rem;margin:1.75rem 0;font-weight:600}
.site-footer{border-top:1px solid var(--ink);padding:1.875rem 0}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:1.875rem}
.footer-inner>a:last-child{font-size:1.25rem;text-underline-offset:5px}
@keyframes marker{from{transform:rotate(-1deg) scaleX(0)}to{transform:rotate(-1deg) scaleX(1)}}
@keyframes title-enter{from{opacity:0;transform:translateY(1.75rem)}to{opacity:1;transform:translateY(0)}}
@keyframes portrait-enter{from{opacity:0;transform:translate(-50%,1.875rem)}to{opacity:1;transform:translate(-50%,0)}}
@keyframes panel-enter{from{opacity:0;transform:translateY(0.875rem)}to{opacity:1;transform:none}}
@keyframes poster-enter{from{clip-path:inset(0 0 100% 0)}to{clip-path:inset(0)}}
@media(hover:hover) and (pointer:fine){.poster-link:hover img{transform:scale(1.035)}.theory-feature:hover .concept-a{transform:rotate(-2deg)}.theory-feature:hover .concept-b{transform:rotate(2deg)}}
@media(max-width:1100px){
 .site-header:has(.nav-dropdown[open]){padding-bottom:7rem}
 .wrap{width:calc(100% - 4rem)}.header-inner{gap:1.5rem}.site-nav{gap:1.5rem}
 .behaviour{grid-template-columns:3rem minmax(0,21.875rem) 1fr;gap:1.375rem}.behaviour>.round-link{display:none}
 .theory-feature{gap:1.875rem}.theory-visual{padding:1.75rem 0.875rem}.concept{padding:1.25rem}
 .lesson-layout{grid-template-columns:12.5rem minmax(0,1fr);gap:2.1875rem}
}
@media(max-width:800px){
 .opening-art img{width:150%;object-fit:contain;object-position:center bottom}
 .opening-disc{top:auto;bottom:-30%;width:min(110vw,60svh)}
 .wrap{width:calc(100% - 2.75rem)}.header-inner{gap:1.25rem;min-height:4.875rem}.brand{font-size:2.5rem}
 .site-nav{gap:1.125rem}.site-nav a,.site-nav summary{font-size:1.125rem}
 .theory-feature{grid-template-columns:minmax(0,1fr)}.theory-visual{min-height:14.375rem}.concept{font-size:2.5rem}
 .theory-copy{font-size:1.5rem}.theory-copy .text-link{margin-top:1.375rem}
 .behaviour{grid-template-columns:2.75rem minmax(0,1fr);gap:1.25rem}.behaviour .poster-link{grid-column:2}
 .behaviour-copy{grid-column:2}.behaviour-copy h3{font-size:2.375rem}
 .research-grid{grid-template-columns:1fr;gap:1.75rem}.research-item{padding:1.5rem 0}.research-item+.research-item{border-top:1px solid var(--line)}.research-item h3{min-height:0}
 .lesson-layout{display:block;padding-top:2rem}.lesson-aside{position:static;margin-bottom:2.375rem}
 .lesson-aside nav{flex-direction:row;flex-wrap:wrap;gap:0.75rem 1.5rem;border:0}
 .lesson-aside nav a{padding:3px 0.625rem;border-left:2px solid transparent;text-decoration:underline;text-underline-offset:4px}
 .lesson-index{display:none}.lesson-heading{display:block}.lesson-poster{height:auto;aspect-ratio:16/9}
}
@media(max-width:600px){
 .site-header .header-inner{width:calc(100% - 2.25rem)}
 .wrap{width:calc(100% - 2.25rem)}.header-inner{flex-wrap:wrap;gap:0;justify-content:space-between;padding:0.875rem 0 0.375rem}
 .brand{order:0;font-size:2.5rem}
 .site-nav{order:2;width:100%;justify-content:space-between;margin-top:0.625rem;gap:0.5rem}
 .site-nav a,.site-nav summary{font-size:1.125rem;padding:0.4375rem 0}
 .opening-copy{padding-top:1.875rem}.opening h1{font-size:clamp(3.25rem,11.4vw,4.5rem);line-height:1}
 .opening-copy p{animation:title-enter 650ms 180ms var(--ease) both;font-size:1.375rem;max-width:20.625rem;margin-top:1.5rem}
 .opening-art{min-height:16.25rem;margin-top:0.75rem}.opening-art img{width:150%;max-width:none;height:100%;object-fit:contain}
 .pane-inner{padding-block:1.875rem}
 #behaviours .pane-inner,#learn .pane-inner{padding-top:1.5rem}
 .panel-title{font-size:clamp(2.75rem,13vw,3.25rem);margin-bottom:1.75rem}.theory-visual{min-height:13.125rem;padding:1.625rem 0.75rem}
 .theory-diagram{gap:0.5rem}.concept{font-size:clamp(1.5625rem,6.4vw,2.375rem);padding:1.125rem 0.5rem}.concept-plus{font-size:2rem}
 .theory-copy{font-size:1.375rem}.teaching-note{font-size:1.375rem}
 .behaviour{display:grid;grid-template-columns:1fr;gap:1.125rem;padding:1.75rem 0}.behaviour-number{font-size:2.625rem;margin:0}
 .behaviour .poster-link,.behaviour-copy{grid-column:1}.behaviour-copy h3{font-size:2.25rem}.behaviour-copy p{font-size:1.375rem}
 .research-intro{font-size:1.625rem;margin-bottom:2.25rem}.research-item h3{font-size:2.125rem}
 .future .panel-title{font-size:clamp(4.5rem,18vw,6.75rem)}.future-description{font-size:1.625rem}
 .breadcrumb{font-size:1.25rem;padding:1.5rem 0}.lesson-heading{padding-top:4px}.lesson-heading h1{font-size:3.25rem;overflow-wrap:break-word}
 .lesson-heading p{font-size:1.5rem}.lesson-body{font-size:1.375rem}.lesson-body h2{font-size:2.25rem}.dialogue{padding:1.25rem}
 
 .footer-inner{flex-wrap:wrap;gap:1.5rem}
}
@media(max-height:600px) and (min-width:601px){.opening-copy{padding-top:1.125rem}.opening h1{font-size:clamp(3.5rem,13vh,5rem)}.opening-copy p{margin-top:0.875rem}.opening-art{min-height:11.875rem}}
@media(max-width:360px){.site-nav > a,.nav-dropdown{max-width:31%}.site-nav summary,.site-nav > a{white-space:normal;line-height:1.2}}

/* Theory is read within the approach panel, below its overview. */
.theory-details{padding-top:4rem}
.theory-details>.lesson-heading h3{font:700 clamp(2.5rem,5vw,4.5rem)/1 var(--display);text-transform:uppercase;margin-bottom:1.5rem}
.theory-details .lesson-aside{top:1.5rem}
.theory-details .lesson-layout{grid-template-columns:12.5rem minmax(0,1fr);gap:2rem;justify-content:initial}
.theory-details .lesson-aside nav a{padding-left:0.75rem;padding-right:0.5rem}
.theory-details .lesson-layout{margin-left:0}
.theory-details .lesson-body{max-width:none}
.theory-details .lesson-body>section{scroll-margin-top:1.5rem}
.behaviour-page .lesson-layout{grid-template-columns:12.5rem minmax(0,1fr);gap:2rem;justify-content:initial;margin-left:0;padding-bottom:0}
.behaviour-page .lesson-aside nav a{padding-left:0.75rem;padding-right:0.5rem}
@media(max-width:600px){.theory-details{padding-top:2.5rem}.theory-details .lesson-layout{display:block}}

.page-pane:focus{outline:none}

@media(min-width:601px) and (max-width:700px){
 .home-page .header-inner{flex-wrap:wrap;justify-content:space-between;gap:0;padding:0.875rem 0 0.375rem}
 .home-page .site-nav{order:2;width:100%;justify-content:flex-end;margin-top:0.5rem;gap:1.5rem}
}

.behaviours-cta{display:flex;align-items:center;justify-content:center;gap:1.5rem;width:max-content;max-width:100%;margin:4.875rem auto 1.5rem;padding:1.25rem 2.125rem;background:var(--red);color:var(--white);font:700 clamp(1.625rem,3vw,2.625rem)/1 var(--display);text-transform:uppercase;text-decoration:none;transition:background 180ms var(--ease),color 180ms var(--ease),transform 180ms var(--ease)}
.behaviours-cta:hover{background:var(--yellow);color:var(--ink);transform:translateY(-3px)}
.cta-arrow{width:1em;height:.75em;flex-shrink:0;transform:translateY(-.06em)}
@media(max-width:600px){.nav-menu{left:0;transform:none;width:16.875rem}.behaviours-cta{margin-top:3rem;padding:1.125rem 1.375rem;font-size:1.75rem;text-align:center}}
#theory-repertoire>.behaviours-cta,#repertoire>.behaviours-cta,#learn>.pane-inner>.behaviours-cta{margin:2.625rem auto 0}
#learn .theory-details .lesson-layout{padding-top:calc(3.75rem + 2.3622rem);padding-bottom:0}
#learn .pane-inner{padding-bottom:2.625rem}

.behaviour-page .behaviours-cta{margin-top:2.625rem}

/* Heading artwork stays in the same layout as its text. */
.panel-heading{display:grid;grid-template-columns:minmax(0,.94fr) minmax(0,1fr);gap:2rem;align-items:center;margin-bottom:2rem}
.panel-heading .panel-title{margin:0}
.panel-heading>*{min-width:0}
#learn .panel-cutout,#behaviours .panel-cutout{width:100%;height:auto;pointer-events:none}
.behaviour-heading{grid-template-columns:minmax(0,1fr) minmax(0,20rem)}
.behaviour-heading .panel-title{margin-bottom:1.5rem}
.behaviour-heading .teaching-note{margin-bottom:0}
#learn .article-cutout{float:right;width:15rem;margin:0.5rem 0 1.5rem 2rem;pointer-events:none}
#learn .fle-cutout{float:left;width:17.5rem;margin:0.5rem 2rem 1.25rem 0}
#learn #theory-dialogic,#learn #theory-fle{display:flow-root}

/* Research documents retain the source wording and table structure. */
.research-document-label{font:700 1.75rem/1.2 var(--display);letter-spacing:.04em;color:var(--muted)}
.research-next-cta{margin:1.75rem auto 3rem;padding:1rem 1.5rem;font:700 1.375rem/1.35 var(--body);text-transform:none}
.conference-evidence{display:block;width:100%;height:auto;margin:1.75rem 0 0}
.research-page .research-content{grid-template-columns:12.5rem minmax(0,1fr);gap:2.5rem;justify-content:initial;padding-top:2rem;padding-bottom:1.5rem}
.research-page .research-content:has(+.research-next-cta){padding-bottom:0}
.research-page .lesson-aside nav a{padding-left:0.75rem;padding-right:0.5rem;line-height:1.3}
.research-equation{margin:1.75rem 0;padding:1.5rem 1.75rem;border-block:1px solid var(--line);text-align:center;font:italic 1.5rem/1.8 Georgia,'Times New Roman',serif;overflow-wrap:anywhere}
.research-table{margin:1.875rem 0}
.research-table figcaption{font:700 1.75rem/1.2 var(--display);margin-bottom:1rem}
.table-scroll{max-width:100%;overflow-x:auto;border-block:1px solid var(--ink)}
.research-table table{width:100%;border-collapse:collapse;font-size:1.25rem;line-height:1.45}
.research-table th,.research-table td{padding:0.9375rem 1.125rem;vertical-align:top;text-align:left;border-bottom:1px solid var(--line)}
.research-table thead{background:#eee8da}
.research-table th[scope="colgroup"]{background:#e5ddc9;border-bottom:1px solid var(--ink);text-align:center}
.research-table th[scope="colgroup"]+th{border-left:1px solid var(--line)}
.research-table tbody th{font-weight:650}
.research-table tbody tr:nth-child(even){background:rgba(203,199,186,.14)}
.research-table tbody tr:last-child>*{border-bottom:0}
.research-table p{margin:0;font-size:inherit;line-height:inherit}
.research-table p+p{margin-top:.5em}
.research-table table:has(th[scope="colgroup"]){min-width:52.5rem}
.research-table table:has(th[scope="colgroup"][colspan="4"]){min-width:58.75rem}
.research-table table:has(th[scope="colgroup"]) tbody td{white-space:nowrap}
.research-table table:has(th[scope="colgroup"][colspan="3"]) :is(thead tr:nth-child(2),tbody tr)>:nth-child(4),.research-table table:has(th[scope="colgroup"][colspan="4"]) :is(thead tr:nth-child(2),tbody tr)>:nth-child(5){border-left:1px solid var(--line)}
.research-page .table-note{color:var(--muted);font-size:1.125rem;line-height:1.5}
.research-quote{margin:1.375rem 0 1.875rem;padding:1.125rem 1.5rem;border-left:3px solid var(--yellow);background:rgba(203,199,186,.14)}
@media(max-width:1100px){.site-header:has(.research-dropdown[open]){padding-bottom:9.5rem}}
@media(max-width:800px){.research-page .research-content{display:block}.research-page .lesson-aside{position:static}}
@media(max-width:600px){
 .research-grid{margin-top:3.75rem}
 .research-dropdown .nav-menu{left:50%;transform:translateX(-50%);width:16.875rem}
 .research-equation{padding:1.25rem 0.75rem;font-size:1.25rem}
 .research-table th,.research-table td{padding:0.75rem;font-size:1.125rem}
 .research-quote{padding:1rem 1.125rem}
}
@media(prefers-reduced-motion:reduce){.research-item h3 a,.research-image-link,.research-item img{transition:none}.research-item h3 a:hover,.research-image-link:hover,.research-image-link:hover img{transform:none}}

/* What’s Next keeps its introduction above the fold, with updates on the next screen. */
.future .future-hero{position:relative;min-height:calc(100svh - 5.375rem);isolation:isolate;overflow:hidden}
.paged .future .future-hero{min-height:100%}
.future-hero-art{position:absolute;z-index:-1;inset:0;width:100%;height:100%;max-width:none;object-fit:cover;object-position:center bottom;pointer-events:none}
.future-scroll-cue{position:absolute;bottom:clamp(1.5rem,4vh,2.75rem);left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:0.625rem;color:var(--muted);font-size:1rem;font-weight:600;letter-spacing:.02em;text-decoration:none;white-space:nowrap;transition:color 180ms var(--ease)}
.future-scroll-cue svg{width:1.5rem;height:1.75rem;transition:transform 180ms var(--ease)}
.future-scroll-cue:hover{color:var(--red)}
.future-scroll-cue:hover svg{transform:translateY(4px)}
.future-content{max-width:62.5rem;padding:clamp(3rem,8vh,6rem) 0 1.5rem}
.future-content p+p{margin-top:1.5em}
#classroom-process .methods-next-cta{margin:1.75rem auto 0}
@media(max-height:600px) and (min-width:601px){.future .panel-title{font-size:clamp(4.375rem,20vh,7.5rem)}.future-description{font-size:clamp(1.375rem,5vh,1.875rem)}}
@media(prefers-reduced-motion:reduce){.future-scroll-cue svg{transition:none}}

/* Author attribution and project contact. */
.author-footer{padding:1.5rem 1.125rem 1.75rem;text-align:center;flex-shrink:0}
.author-footer p,.author-credit{color:var(--muted);font:400 0.9375rem/1.5 var(--body);text-align:center}
.author-credit{margin:1.5rem 1.125rem 0}
.opening-copy .opening-credit{font-size:1.0625rem;line-height:1.5;color:var(--muted);margin-top:1rem}
.paged .opening .opening-art{min-height:0}
.future-content .cooperation-contact{margin-top:2.25rem;font-size:1.1875rem}
.cooperation-contact a{text-decoration-thickness:1px;text-underline-offset:4px;overflow-wrap:anywhere}
.cooperation-contact a:hover{color:var(--red)}
@media(max-width:600px){.opening-copy{top:1.5rem}.opening-art{margin-top:2.25rem}.opening-copy .opening-credit{font-size:0.9375rem}.author-footer p,.author-credit{font-size:0.875rem}.paged .opening{overflow-y:auto}.paged .opening .opening-art{min-height:13.75rem}}

/* Balance the final button between the closing paragraph and author credit. */
.behaviour-page main>.behaviours-cta{margin-bottom:0}
.behaviour-page main+.author-footer{padding-top:2.625rem}
.research-page main>.research-next-cta{margin-bottom:0}
.research-page main:has(>.research-next-cta)+.author-footer{padding-top:1.75rem}
#learn>.pane-inner{padding-bottom:0}
#learn>.author-footer{padding-top:2.625rem}

/* Research heading collages share the title space without overlapping the reading area. */
#research .research-art-heading,.research-page .lesson-heading.research-art-heading{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:3rem;align-items:start;padding-bottom:0}
.research-art-heading .research-heading-art{width:100%;max-width:40rem;justify-self:end;height:auto;pointer-events:none}
.research-art-heading .panel-title,.research-art-heading h1{margin-top:0;margin-bottom:0}
.research-page .research-art-heading h1{font-size:clamp(3.25rem,5vw,5.625rem)}
#research .research-grid{margin-top:1.5rem}
@media(max-width:1100px){#research .research-art-heading,.research-page .lesson-heading.research-art-heading{gap:1.75rem}.research-art-heading .panel-title{font-size:clamp(3.25rem,6.5vw,4.5rem)}.research-page .research-art-heading h1{font-size:clamp(2.625rem,5vw,3.75rem)}}
@media(max-width:800px){#research .research-art-heading,.research-page .lesson-heading.research-art-heading{grid-template-columns:1fr;gap:1.5rem}.research-art-heading .panel-title,.research-art-heading h1{margin-top:0}.research-art-heading .research-heading-art{width:min(100%,32.5rem);justify-self:center}.research-page .lesson-heading.research-art-heading{padding-bottom:1.75rem}}

.research-art-heading .research-document-label{margin-top:1.5rem}

/* Short desktop entry pages fit the viewport; reading pages keep natural scrolling. */
#behaviours>.pane-inner,#research>.pane-inner{padding-bottom:0}
#research .research-overview-frame>.pane-inner{padding-bottom:0}
@media(min-width:801px){
 #research .research-art-heading{align-items:start}
 #research .research-heading-art{max-height:none;object-fit:contain;object-position:right center}
 #research .research-grid{margin-top:1.125rem}
 #research .research-item{padding-top:1rem}
 #research .research-item h3{font-size:clamp(1.875rem,2.8vw,2.5rem);margin-bottom:0.875rem}
 #research .research-image-link{max-width:21.25rem}
 #research .research-overview-frame>.author-footer{padding-top:1.25rem;padding-bottom:1.25rem}
}


/* Desktop proportions follow the content width; short windows scroll naturally. */
@media(min-width:901px){
 .paged #research{overflow:clip}
 #research .research-overview-frame{transform:translateY(-1cm) scale(var(--research-overview-scale,1));transform-origin:top center;display:flow-root}
 .wrap{width:min(90rem,calc(100% - 7rem));container-type:inline-size}
 .panel-heading{gap:2.2222cqw;margin-bottom:2.2222cqw}
 .behaviour-heading{grid-template-columns:minmax(0,1fr) minmax(0,22.2222cqw)}
 .behaviour{grid-template-columns:4.1667cqw 30.5556cqw minmax(0,1fr) 3.3333cqw;gap:2.0833cqw}
 .behaviour>.round-link{display:grid;width:3.3333cqw;height:3.3333cqw}
 #research .research-art-heading,.research-page .lesson-heading.research-art-heading{gap:3.3333cqw;align-items:center}
 .research-art-heading .research-heading-art{max-width:44.4444cqw}
 .display,.panel-title{font-size:7.2222cqw}
 .theory-feature{gap:5rem}
 .theory-copy{font-size:1.75rem}
 .theory-copy h3{font-size:2.875rem}
 .behaviour-copy h3{font-size:3.1944cqw}
 .lesson-heading h1{font-size:6.25cqw}
 .theory-details>.lesson-heading h3{font-size:4.5rem}
 .research-art-heading .panel-title{font-size:7.2222cqw}
 .research-page .research-art-heading h1{font-size:6.25cqw}
 .research-item h3,#research .research-item h3{font-size:2.5rem}
 .future .panel-title{font-size:14.5833cqw}
 .future-description{font-size:2.5rem}
 .opening h1{font-size:min(8.23vw,9.875rem)}
 .opening-copy p{font-size:1.875rem;margin-top:1.375rem}
 .opening-copy{padding-top:3.5rem}
 .opening-art{flex:0 0 auto;width:min(100%,120rem);aspect-ratio:1400/570;min-height:0;margin-inline:auto}
 .opening-art img{width:100%;height:auto;object-fit:contain}
 .paged .opening{overflow-y:auto;overflow-x:hidden}
 .pane-inner,#behaviours .pane-inner,#learn .pane-inner,.research-page main{padding-top:1.75rem}
 .research-grid{margin-top:6.75rem}
 .behaviours-cta{font-size:2.625rem}
 /* Reading copy has a lower bound while large headings and art scale together. */
 .lesson-body,.behaviour-copy p,.text-link{font-size:max(18px,1.375rem)}
 .theory-copy{font-size:max(18px,1.75rem)}
 .site-nav a,.site-nav summary,.site-nav .nav-menu a,.lesson-aside nav a{font-size:max(16px,1.25rem)}
 .research-table table{font-size:max(16px,1.25rem)}
}
@media(max-width:900px){
 html{font-size:16px}
 .panel-heading{grid-template-columns:minmax(0,1fr);gap:1.5rem;margin-bottom:2rem}
 #learn .panel-cutout{width:min(100%,32rem);justify-self:center}
 #behaviours .panel-cutout{width:min(60%,16rem);justify-self:center}
 .theory-feature{grid-template-columns:minmax(0,1fr);gap:2rem}
 #research .research-art-heading,.research-page .lesson-heading.research-art-heading{grid-template-columns:minmax(0,1fr);gap:1.5rem}
 .research-art-heading .research-heading-art{width:min(100%,32.5rem);justify-self:center}
 .lesson-layout,.research-page .research-content{display:block}
 .lesson-aside{position:static;margin-bottom:2rem}
 .lesson-aside nav{flex-direction:row;flex-wrap:wrap;gap:.75rem 1.5rem;border:0}
 .lesson-aside nav a{padding:.1875rem .625rem;text-decoration:underline;text-underline-offset:4px}
}

/* Full-width newspaper collage on the What’s Next opening screen. */
#next .future-hero{width:100%;container-type:inline-size;justify-content:flex-start;padding:clamp(7rem,23vh,15rem) 9vw 0}
#next .future-hero .panel-title{font-size:9.5cqw;line-height:.95;white-space:nowrap;margin:0;width:56%;max-width:none}
#next .future-hero .future-description{font-size:2cqw;margin-top:1.25rem;width:55%}
#next .future-scroll-cue{bottom:1.25rem;color:var(--ink);font-size:.9375rem}
@media(max-width:900px){
 #next .future-hero{padding:12vh 6vw 0}
 #next .future-hero .panel-title{font-size:12cqw;width:100%}
 #next .future-hero .future-description{font-size:clamp(18px,3.4cqw,28px);width:85%}
 #next .future-hero-art{object-position:62% bottom}
}

/* The landing collage and copy share one fixed, non-scrolling screen. */
.paged #home{overflow:hidden;scrollbar-gutter:auto}
#home .opening-copy{width:96%;top:0;padding-top:4.3dvh}
#home h1{font-size:min(8.23vw,13dvh);line-height:.94}
#home h1>span{white-space:nowrap}
#home .opening-copy p{max-width:none;font-size:min(1.65vw,2.7dvh);line-height:1.5;margin-top:2.2dvh}
#home .opening-copy .opening-credit{font-size:min(.9vw,1.5dvh);margin-top:1.5dvh}
#home .opening-art{position:absolute;inset:0;width:100%;height:100%;min-height:0;aspect-ratio:auto;margin:0;pointer-events:none}
#home .opening-art img{width:max(110%,180dvh);height:auto;max-width:none;bottom:-27dvh;object-fit:contain;object-position:center bottom}
@media(max-width:600px){
 #home .opening-copy{padding-top:4dvh}
 #home h1{font-size:min(8.23vw,10dvh)}
 #home .opening-copy p{max-width:90%;font-size:min(4.5vw,2.7dvh);margin-top:2.5dvh}
 #home .opening-copy .opening-credit{font-size:min(3.2vw,1.8dvh);margin-top:1.5dvh}
 #home .opening-art img{width:max(100%,170vw);bottom:-12vh}
}